> For the complete documentation index, see [llms.txt](https://zpass.docs.aleo.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zpass.docs.aleo.org/fundamentals.md).

# Fundamentals

- [Issuer](https://zpass.docs.aleo.org/fundamentals/issuer.md)
- [Holder](https://zpass.docs.aleo.org/fundamentals/holder.md)
- [Verifier](https://zpass.docs.aleo.org/fundamentals/verifier.md)
- [Off-chain flow](https://zpass.docs.aleo.org/fundamentals/the-off-chain-flow.md)
- [On-chain flow](https://zpass.docs.aleo.org/fundamentals/the-on-chain-flow.md)
- [Local Execution with WASM](https://zpass.docs.aleo.org/fundamentals/trustless-ecosystem-with-wasm.md)